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【Objective】 To explore the correlation between CSAG1 expression and the prognosis and tumor-infiltrating lymphocytes in renal clear cell carcinoma (RCCC), and to predict the survival and tumor progression. 【Methods】 The gene expression profiles and clinical information of CSAG1 were downloaded from the Cancer Genome Atlas (TCGA). Based on the differential mRNA expression, GO annotation and KEGG pathway analysis were performed. The relationship between CSAG1 and tumor immune infiltration was assessed with Tumor Immunoassay Resource (Timer 2.0) database. The mRNA expression of CSAG1 in human RCCC specimens was validated with qRT-PCR. 【Results】 CSAG1 expression was significantly higher in RCCC tissues than in normal tissues (P<0.05). The qRT-PCR results revealed that the mRNA level of CSAG1 was consistent with that predicted by bioinformatic analysis. The KEGG analysis and GO annotation indicated high GSAG1 expression in RCCC was related to transmembrane transport, tricarboxylic acid cycle and lysosome. CSAG1 expression was positively related to the infiltration of pDC, aDC, CD8+ T cells, cytotoxic cells, TFH, TH1 cells, Tem, NK CD56dm cells, Treg and T cells, but negatively correlated with macrophage infiltration. 【Conclusion】 CSAG1 may be associated with poor prognosis of RCCC and become a potential immunotherapy target.
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Objective:To evaluate the potential effects of serum lipid levels, appendicular skeletal muscle mass index (ASMI) and body mass index (BMI), together with its dynamic changes, on tumor progression in renal clear cell carcinoma patients, so as to inform body weight management.Methods:This prospective cohort study included a total of 100 patients with high-risk clear cell renal cell carcinoma. Serum lipid levels were detected, ASMI and BMI were measured using bioelectrical impedance analysis and the dynamic changes of BMI were tracked. The effects of BMI, ASMI and serum lipid levels on tumor progression within 2 years were explored.Results:Patients with normal BMI and low ASMI had 5.248 (95% CI: 1.946 to 14.153, P = 0.001) times higher risk of tumor progression than those who were overweight or obese. For every 0.1-unit increase in pre-operative HDL-C, the risk of tumor progression decreased by 0.771 (95% CI: 0.631 to 0.942, P = 0.011) times. Patients who experienced more than 5% decrease in BMI compared with baseline had 5.165 (95% CI: 1.735 to 15.370, P = 0.003) times the progression risk of patients whose BMI changed within ±5% from baseline. Conclusions:The advantage of obese clear cell carcinoma patients over normal-weight patients in tumor progression-free survival may be influenced by ASMI, pre-onset involuntary weight loss and lipid levels. Therefore, patient weight management should not merely focus on absolute BMI but tailor to individual characteristics, including cancer stage, body composition and metabolic status.
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Objective:To analyze the relationship between the expression and prognosis of kinesin family member 4A (KIF4A) in renal clear cell carcinoma and explore its potential mechanism.Methods:Information on the KIF4A gene in renal clear cell carcinoma was retrieved from the UALCAN database, including expression levels, survival analysis, and positive and negative correlation gene data, from which the expression levels, prognostic information, and potential mechanisms of KIF4A in renal clear cell carcinoma were derived.Results:KIF4A is highly expressed in renal clear cell carcinoma, and male patients have a higher expression rate than female patients. The higher the tumor grade and the later the N stage, the more expression ( P<0.05). The survival analysis showed that the expression level and prognosis of KIF4A were negatively correlated ( P<0.05). Cyclin B2 (CCNB2), kinesin family member 23 (KIF23), cell division cycle associated 5 (CDCA5), and KIF4A were significantly positively correlated, whereas DHRS12, crumbs protein homolog 3 (CRB3), β-hydroxybutyrate dehydrogenase 2 (BDH2), and KIF4A were significantly negatively correlated. Conclusions:KIF4A plays an important role in the development of renal clear cell carcinoma and can be used as a potential marker and therapeutic target for the diagnosis and prognosis of renal clear cell carcinoma, including in children.
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Objective@#To analyze the association between hexokinase 2 (HK2) gene expression and clinical pathological characteristics in renal clear cell carcinoma using database and bioinformatics methods.@*Methods@#Oncomine database was used to analyze the most significant differentially expressed genes between renal clear cell carcinoma and non-kidney tissue. The expression levels of mRNA and protein were detected by GPEIA and The Human Protein Atlas database. Correlation of HK2 expression level between clinicopathological features and prognosis of renal clear cell carcinoma was analyzed using LinkedOmics and KM-plotter databases, respectively. The STRING database was used to predict the potential protein interaction mechanism.@*Results@#The most significant difference protein in renal clear cell carcinoma, i.e. HK2, was found, which was highly expressed in renal clear cell carcinoma tissues, and positively correlated with pathological stage, T stage and N stage of renal cell carcinoma (all P<0.05). The overall survival rate of the renal clear cell carcinoma patients with high expression of HK2 was significantly lower than that of the patients with low expression (P<0.05).@*Conclusions@#High expression of HK2 gene may be associated with pathological staging, high T stage, high N stage, and poor prognosis of renal clear cell carcinoma.
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Objective To analyze the association between hexokinase 2 (HK2) gene expression and clinical pathological characteristics in renal clear cell carcinoma using database and bioinformatics methods. Methods Oncomine database was used to analyze the most significant differentially expressed genes between renal clear cell carcinoma and non-kidney tissue. The expression levels of mRNA and protein were detected by GPEIA and The Human Protein Atlas database. Correlation of HK2 expression level between clinicopathological features and prognosis of renal clear cell carcinoma was analyzed using LinkedOmics and KM-plotter databases, respectively. The STRING database was used to predict the potential protein interaction mechanism. Results The most significant difference protein in renal clear cell carcinoma, i.e. HK2, was found, which was highly expressed in renal clear cell carcinoma tissues, and positively correlated with pathological stage, T stage and N stage of renal cell carcinoma (all P<0.05). The overall survival rate of the renal clear cell carcinoma patients with high expression of HK2 was significantly lower than that of the patients with low expression (P<0.05). Conclusions High expression of HK2 gene may be associated with pathological staging, high T stage, high N stage, and poor prognosis of renal clear cell carcinoma.
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Objective The aim of this study was to investigate the expressions of and clinical significance of F-box/WD-40 domain protein 10(FBXW10) as well as the expression of cell cycle protein cyclin E( cyclin E) in renal clear cell carcinoma. Methods Immunohistochemistry SP method was used to detect the expressions of FBXW10 and cyclin E protein in 60 cases of renal clear cell carcinoma and 20 cases of adjacent normal tissues. The relationship between the expressions of FBXW10 and cyclin E,and the clinical pathological characteristics was analyzed. Results The expression rates of FBXW10 and cyclin E protein in renal clear cell carcinoma were 40. 0% ,70. 0% ,respectively and adjacent normal tissues were 55. 0% and 25. 0% ( P<0. 05). The expression of FBXW10 was correlated with the histologic grade of renal clear cell carcinoma(P=0. 041),histologic grade( P=0. 030);the ex-pression of cyclin E was correlated with the pathological tumor stage of clear cell renal cell carcinoma(P=0. 005),degree of differen-tiation(P=0. 035),and distant metastasis(P=0. 011). There was a significant correlation between the expressions of FBXW10 and cyclin E in renal clear cell carcinoma(r=0. 533,P<0. 001). Conclusion FBXW10 and cyclin E may play important roles in the development of renal clear cell carcinoma.
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Objective To investigate the expression of FBP1 in human renal clear cell carcinoma and paracancerous tissue and its effect and clinical significance in the carcinogenesis,progression and prognosis of renal cancer.Methods The paraffin sections from 118 patients with renal clear cell carcinoma treated by surgical resection and fresh specimens from 40 patients with renal clear cell carcinoma were selected.The expressions of FBP1 protein and mRNA in renal cancer and paracancerous tissues(negative incisal edge) were detected by adopting the immunohistochemistry(IHC),Western blot and RT-PCR.Its correlation with clinicopathologic characteristics and prognosis of the patients was analyzed.Results The IHC result,found that strong positive expression of FBP1 protein could be seen in 78.81％ (93/118) of cancer-adjacent tissues,while only 39.83％ (47/118) of renal cancer tissues had positive expression.Western blot found that the expression positive rate of FBP1 in renal cancer tissue was significantly decreased compared with corresponding cancer-adjacent tissues (P＜0.01).RT-PCR found that the FBP1mRAN expression level in cancer-adjacent tissues was also significantly higher than that in renal cancer tissue(P＜0.05).The FBP1 low expression was significantly correlated with the clinical stage,pathologic grade,UISS risk coefficient and recurrence(P＜0.05),and had no relation with the age,gender,symptoms,tumor size,location,tumor necrosis,vascular invasion and adrenal involvement(P＞0.05).The 5-year survival rate in renal cancer patients with FBP1 positive expression was higher than that in the patients with FBP1 negative expression(P＜0.05).Conclusion FBP1 and protein are lowly expressed in renal cancer tissue,are correlated with occurrence and development of renal cancer,and may become one of candidate markers of renal cancer prognosis.
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Objective Investigating the CT features and related prognostic factors of high-grade renal clear cell carcinoma.Methods The data of 141 patients with renal clear cell carcinoma treated by radical nephrectomy in our hospital from November 2012 to April 2017 were analyzed retrospectively.There were 102 males and 39 females.Age from 30 to 86 years old.The tumors were located in the left side in 73 cases and 68 in the right.The tumor size ranged from 1.6 cm to 12.7 cm.50 cases of clinical stage T1a,stage T1b 67 cases,24 cases above T2.All patients had CT examination before operation.According to the postoperative pathological nuclear grade,patients were divided into high grade group (Ⅲ-Ⅳ) and low grade group (grade Ⅰ-Ⅱ),clinical data and CT findings were compared between the two groups (tumor size,capsule,CT,with or without leafs,with or without hemorrhagic necrosis),survival situation after the operation.Result The results of CT examination of 141 cases of this study indicated there were 109 cases of complete capsule,85 cases of tumor showed lobulation,102 cases of tumor showed hemorrhagic necrosis,the average CT value is 10-72 HU,35.4 HU in average;enhanced CT value is 32-308 HU,102.1 HU in average.After pathological examination,the nuclear classification was 66 cases in high grade group and 75 cases in low grade group.The CT examination in thc high grade group and the low grade group showed the number of cases with complete capsule [44 cases (33.3％) vs.65 cases (13.3％)] and plain CT scan value [(38.9 ± 1.1) HU) vs.(32.3 ± 1.1) HU],the difference was statistically of significance (P ＜0.01).The high level of patients in group T1 and group above T2 stage were 46 cases and 20 cases.And the cases of low grade group were 71 cases and 4 cases,there was significant difference between two groups (P ＜ 0.01).The 141 cases were followed up for 2-58 months,with an average of 26.4 months.There was statistical significance difference between the two groups of T1 patients and patients above T2 (P ＜ 0.01).The results of CT examination were compared.There were significant differences in the case of intact capsule and the value of CT scan (P ＜ 0.01).The overall survival rate between the two groups was statistically significant (P ＜ 0.05).Conclusions The CT examination of high-grade renal cell carcinoma shows that most of the capsule is not complete and the CT value of the scan is much higher.The pathological grading of renal cell careinoma indicates the malignancy of tumor cells,which is closely related to prognosis.
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Objective To investigate the effect of exogenous small RNA (dsP21-397) transfection on growth of human renal clear cell carcinoma cell lines A-498 and Caki-1. Methods The dsControl(control group) and dsP21-397(experimental group)were transfected into A-498 and Caki-1,respectively. The expression of p21 mRNA was analyzed by qRT-PCR. The expression of p21 protein,CDK4 and Cyclin D1 proteins were detected by Western blot. The cell cycle distribution was examined by flow cytometry(FCM). MTS assay and colony formation assay were used to analyze cell viability and proliferation ability. Results Compared with dsControl,p21 mRNA levels in A-498 and Caki-1 cells increased to 2.55-fold(P<0.01)and 2.18-fold(P<0.01),respectively,after transfection with dsP21-397. The expression of p21 protein was up-regulated while the expression of CDK4 and CyclinD1 were down-regulated. The percentage of cells in G0/G1 phase significantly increased after transfection of dsP21-397,and the proportion of cells in S phase and G2/M phase significantly decreased. The activity of A-498 and Caki-1 cells significantly decreased and the number of colonies in the dsP21-397 group was significantly lower. Conclusions dsP21-397 can significantly activate p21 protein expression,down-regulate the cell cycle-associated proteins,and inhibit the growth of renal clear cell carcinoma cells.
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Objective:To report one case of renal clear cell carcinoma transferred to the nasal cavity and sinuses treated by low temperature coblation assisted nasal malignant tumor resection under nasal endoscopye, and to review the associated literatures.Methods: Under nasal endoscope, the tumor was removed along the lateral wall of the nasal cavity with bipolar electrocautery and coblation.The vaseline gauze was used to stop bleeding, and the tumor was completely removed.Results: The intraoperative frozen section showed a capillary hemangioma.The patient was diagnosed as metastatic renal cell carcinoma to the nasal cavity and sinuses by the results of pathology and immunohistochemical staining.The postoperative recovery was uneventful and the nasal packing was removed 3 d after operation.Conclusion: Renal clear cell carcinoma transferred to the nasal cavity and sinuses is rare;under nasal endoscope, surgical resection is a good procedure to control metastasis.
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Objective To elucidate the correlation between the enhancement degree of renal clearcell carcinoma (RCC) on dynamic contrast-enhanced CT and multiple vascular morphometric characteristics including microvessels and mature vessels.Methods A retrospective review was carried out on the records of 37 patients pathologically diagnosed with RCC who underwent plain and triphasic contrast-enhanced CT.The absolute (enhancement attenuation-pre-enhancement attenuation) and relative(absolute enhancement value÷cortex enhancement attenuation) enhancement values of RCC were measured in arterial,venous and delayed phases.And all lesions were divided into hypervascular and hypovascular groups.The number,mean area,perimeter and diameter,shape factor (4π*area/perimeter2) and the total area of microvessels and mature vessels were obtained by CD34 or a-SMA immunohistochemical staining.Then the correlation of radiographic parameters and various vascular morphometric parameters were analyzed.Results In arterial,venous and delayed phases,the absolute enhancement values were positively correlated with the number and the total area of microvessels and mature vessels (P0.05).In addition, the significant differences in the number of microvessels and mature vessels between hypervascular and hypovascular groups were found (P<0.05).Conclusion CT enhancement degrees of RCC are related to multiple vascular morphometric indicators,which gives us more insights in the mechanism of RCC enhancement on CT.
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Objective To investigate the effect of miR-210 on angiogenesis of human renal clear cell carcinoma . Methods Detect the expression of miR-210 in 40 cases of renal clear cell carcinoma tissues , and analyze the rela-tionship between the expression of miR-210 and microvessel density ( MVD) .miR-210-ASO was lipotransfected in-to renal clear cell carcinoma cell line 786-O.RT-qPCR was used to verify the transfection effect .The effect of the supernatant of control group , negative control group and miR-210-ASO group tumor cells on the lumen formation of human umbilical vein endothelial cells ( HUVEC) was observed in a 3-D culturesystems .The transplantation tumor model of nude mice was established , and the effect of miR-210 on the formation of the transplanted tumor micro vessel was observed by endomucin and VEGF immunofluorescence staining under laser scanning confocal micro -scope.Results The expression of miR-210 was positively correlated with microvessel density in renal clear cell carcinoma ( P<0.05 ) .The expression of miR-210 was significantly decreased in 786-O cells transfected with miR-210-ASO( P<0.05 ) .The lumen formation of HUVEC cells co cultured with miR-210-ASO group cell supernatant was significantly less than that of control group and negative control group ( P<0.05 ) .The tumor volume of miR-210-ASO group was less than that of the control group , and the number of the micro vessel and the VEGF expres-sion were significantly less than that of the control group ( P<0.05 ) .Conclusions Inhibition of miR-210 can suppress blood vessel formation in renal clear cell carcinoma .
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Objective To investigate the expression of Polo-like kinase 1 in renal clear cell carcinoma and tissue adjacent to carcinoma;impact of BI2536 on the cell proliferation of renal clear cell carcinoma A498 cell line.Methods We select 12 cases of renal cancer Specimens of randical surgery between January 2013 and December 2014.The study included 7 male patients and 5 female patients,whose age ranged from 41 to 68 years(mean 49 years).Tumors were single and the location of tumor included 5 in left kidney,7 in right kidney.The size of renal tumor ranged from 2.1 to 6.3 cm.All patients did not have radiotherapy and chemotherapy preoperative who have no local and distant matastasis.The pathological results demonstrated renal clear cell carcinoma in 12 cases.At the same time,we collect the tissue 2 centimeters away as control,which pathological results demonstrated normal tissue.The expression of PLK1 was detected by western bloting in tissues from 12 cases of renal clear cell carcinoma and tissue adjacent to carcinoma and quantitative analysis was made.Cell proliferation of A498 cell line at the different concentrations of BI2536 were assayed by flow cytometry (0,20,40,60μg/L).Results The expression of PLK1 in renal clear cell carcinoma tissue are 0.74 ±0.2 and 0.21 ±0.13.The carcinoma tissue is higher than tissue adjacent to carcinoma (P =0.02).BI2536 act on A498 after 48 hours,the A498 cell number were arrested at G2/M phase at 0μg/L,20μg/L,40μg/L and 60μg/L were (10.28 ± 0.47) ％,(14.35 ± 0.85) ％,(20.49 ± 0.78) ％ and (23.90 ± 0.54) ％,respectively.The A498 cell number were arrested at G2/M phase increase when we incearse the concentrations of BI2536 at 48 hours (P ＜ 0.05).Conclusions The higher expression of PLK1 in renal clear cell carcinoma and the proliferation of the renal clear carcinoma cell can be repressed by BI2536 both reveal PLK1 may be used as the molecular maker and therapeutics target of renal clear cell carcinoma.
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Objective:To explore the expression of Netrin-1 protein in human renal clear cell carcinoma (RCCC) and the relationships between Netrin-1, pathology and prognosis. Methods:72 cases of RCCC admitted in our hospital from 2008 June to 2009 June and their adjacent tissues were selected for study. They included 30 cases in stage I-II, 42 cases in stageⅢ-IV;9 cases in grade I, 9 cases in grade II, 40 cases in gradeⅢand 14 cases in grade IV. All cases were followed up for more than 5 years. Survival analysis lines were made by Kaplan—Meier method and the difference between groups was tested by the Log-rank test. The expression of Netrin-1 protein was detected by immunohistochemistry staining and its clinical significance was analyzed. Results:Renal clear cell carcinoma:51 cases in high expression of Netrin-1 and 21 cases in low expression, normal tissues: 12 cases in high expression of Netrin-1 and 60 cases in low expression, the difference between the two groups is significant (χ2=42.921, P<0.01). The difference of the expression of Netrin-1in Fuhrman grade and AJCC clinical stage is significant (χ2=8.000,χ2=6.203;P<0.05). The 5-year survival rate in low protein expression group and in high protein expression group was 79%(17/21) and 62%(32/51). The survival curve had different trend, with no significant difference between groups (χ2=1.360, P=0.245). Conclusions: Netrin-1 protein plays an important role in the development of RCCC. It might be a new specific tumor marker of RCCC, and might become a new target in treatment of RCCC.
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OBJECTIVE@#To explore the expression of Netrin-1 protein in human renal clear cell carcinoma (RCCC) and the relationships between Netrin-1, pathology and prognosis.@*METHODS@#72 cases of RCCC admitted in our hospital from 2008 June to 2009 June and their adjacent tissues were selected for study. They included 30 cases in stage Ⅰ-Ⅱ, 42 cases in stage Ⅲ-Ⅳ; 9 cases in grade Ⅰ, 9 cases in grade Ⅱ, 40 cases in grade Ⅲ and 14 cases in grade Ⅳ. All cases were followed up for more than 5 years. Survival analysis lines were made by Kaplan-Meier method and the difference between groups was tested by the Log-rank test. The expression of Netrin-1 protein was detected by immunohistochemistry staining and its clinical significance was analyzed.@*RESULTS@#Renal clear cell carcinoma: 51 cases in high expression of Netrin-1 and 21 cases in low expression, normal tissues: 12 cases in high expression of Netrin-1 and 60 cases in low expression, the difference between the two groups is significant (χ(2) = 42.921, P ＜ 0.01). The difference of the expression of Netrin-1in Fuhrman grade and AJCC clinical stage is significant (χ(2) = 8.000, χ(2) = 6.203; P＜0.05). The 5-year survival rate in low protein expression group and in high protein expression group was 79％ (17/21) and 62％ (32/51). The survival curve had different trend, with no significant difference between groups ((χ(2) = 1.360, P = 0.245).@*CONCLUSIONS@#Netrin-1 protein plays an important role in the development of RCCC. It might be a new specific tumor marker of RCCC, and might become a new target in treatment of RCCC.
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Objective To investigate the expressions of OCT4 and P27kip1 and their correlations in renal hyaline cell carcinoma. Methods A total of 24 samples of renal hyaline cell carcinoma were detected by immunohistochemistry. The rate of cells with positive labelling of OCT4 and P27kip1 and their intra cellular distribution were observed in renal hyaline cell carcinoma. The expression levels of OCT4 and P27kip1 were compared between different gender, age (<60y and≥60y) and cancer cell metastasis groups. Results The rates of cells with positive OCT4 and P27kip1 expressions were 66.7%and 75% in renal hyaline cell carcinoma respectively. The ratio of cells with high, middle and low expression of OCT 4 were 33.3%, 20.5%and 12.5%in renal hyaline cell carcinoma tissues. OCT4 was mainly expressed in cytoplasm and nuclei with a few was expressed in the cell membrane. The ratio of cells with high, middle and low expression of P27kip1 were 12.5%, 25%and 37.5%in renal hyaline cell carcinoma tissues respectively. The positive staining of P27kip1 was in the cytoplasm and cell membrane, and a small number of nuclei were expressed. There were no significant differences in OCT4 and P27kip1 between different age and gender groups. There were significant differences in OCT4 and P27kip1 expressions between patients with metastasis and patients without metastasis (P < 0.05). A negative correlation was found between OCT4 and P27kip1 expres?sions in renal hyaline cell carcinoma (rs=-0.408, P<0.05). Conclusion The expression of OCT4 is negatively correlated with the expression of P27kip1. Inhibiting expressions of OCT4 or P27kip1, especially knocking down P27kip1 in cytoplasm can be used as a new diagnosis and treatment of renal cancer gene therapy.
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Objective To determine the levels of miR-193a-3p in serum from patients with renal clear cell carcinoma,and eval-uate the potential of miR-193a-3p asa molecular biomarker of renal clear cell carcinoma.Methods Serum samples were taken from 107 untreated hospitalized patients with renal clear cell carcinoma (TNM Ⅰ grade 76 cases,Ⅱ grade 16 cases,Ⅲ grade 2 cases,Ⅳ grade 8 cases and unknown 5 cases)in Nanjing General Hospital from 2010 to 2014 year and 107 age-and gender-matched healthy individuals to determine the level of miR-193a-3p by quantitative reverse-transcription PCR (qRT-PCR). The early diagnostic value of miR-193a-3p for renal clear cell carcinoma was assessed by ROC curve.Results qRT-PCR confirmed that serum miR-193a-3p expression levels was significantly elevated in cancer than in normal controls (3.294± 1.526 vs 1.944±0.600,P =0.000).TNM Ⅰ grade (3.411±1.676 vs 1.944±0.600,P =0.000),Ⅱ grade (2.926±0.927 vs 1.944±0.600,P =0.001),Ⅳ grade(2.926±0.894 vs 1.944±0.600,P =0.000)is significantly higher than that in con-trol group.The area under the ROC curve (AUC)of miR-193a-3p was 0.820 (95% CI,0.756 ~ 0.883),demonstratinga high sensitivity (80.3%)and specificity (93.5%)for the early diagnosis of renal clear cell carcinoma.Conclusion MiR-193a-3p content was significantly elevated in serum from renal clear cell carcinoma and has a high accuracy in diagnosing ear-ly cancer,which holds potential as molecular biomarker for renal clear cell carcinoma.
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Objective To inveatigate the expression and clinical significance of microRNA‐204(miR‐204) in human renal clear cell carcinoma(RCCC) .Methods 65 cases of resected RCCC tissue and corresponding normal tumor‐adjacent tissue were col‐lected and detected the expression level of miR‐204 by using qRT‐PCR .The correlation between the miR‐204 expression level and clilicalpathological features was statistically analyzed .The artificial miR‐204 mimics were adopted to stranfect into Caki‐1 cells ,then the Western blot was used to detect the expression of Bcl‐2 a as the downstream potential targets of miR‐204 and SIRT1 mRNA and protein .Results The expression level of miR‐204 in the RCCC tissue was significantly lowere than that in the normal tumor‐adjacent tissues (P3 cm ,P<0 .05) , lymph node metastasis(P<0 .05) and advanced TNM stage(Ⅲ + Ⅳ ,P<0 .05) .Both the mRNA and protin expression in RCCC Caki‐1 cells were down‐regulated after transfection .Conclusion The expression of miR‐204 is down-regulated in the RCCC tissue and is related to the malignant clinicopathological features ,and miR‐204 may suppress the RCCC genesis and development through down‐regulating the expression of Bcl‐2 and SIRT1 .
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Objective To study to take the oxidized Mannan?modified 786?0 in renal clear cell carcinom as tumor cells antigen to sensitize Dendrit?ic cells(DC)and to observe the its killing effect on renal clear cell carcinoma of CTLs induced. Methods Getting the peripheral blood mononucle?ar cells from the volunteers,and then to be stimulated to turn to be maturation by GM?CSF and IL?4 in vitro. Taking the clear renal carcinoma cell as the tumor antigen,and then making it to be modified by oxidized Mannan to acquire the tumor cell vaccine.Experimental groups include:blank group:DC?PBS group,control group:control?DC?786?0,experimental group:DC?Ox?Mannose?786?0 group. Taking the flow cytometry to detect the changes of DC phenotype,then taking the ELISA to detect the sencretion levels of supernatant of IL?12 of DC,then taking the CCK to detecte the cytotoxicity of lymphocytes(CTL)induced by DC of these experiment groups. Results Results by flow cytometry:the mature phenotype of DCs sensitized by Ox?Mannose?786?0 group included CD80,CD83,CD86 and HLA?DR expressed significantly higher than the other groups. As well as the secretion levels of IL?12. Meanwhile the cytotoxicity activity of lymphocytes(CTLs)induced by DCs which are sensitized by Ox?Mannose?786?0 increased more significantly than the other groups. Conclusion Glycosylated Antigens can be more effective in sensitizing antigen?presenting cells DC,and stimulating them to be maturation,while the killing effect to tumor cells also have noticeably improved.
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Objective: To explore the expression of Netrin-1 protein in human renal clear cell carcinoma (RCCC) and the relationships between Netrin-1, pathology and prognosis. Methods: 72 cases of RCCC admitted in our hospital from 2008 June to 2009 June and their adjacent tissues were selected for study. They included 30 cases in stage I-II, 42 cases in stage III-IV; 9 cases in grade I, 9 cases in grade II, 40 cases in grade III and 14 cases in grade IV. All cases were followed up for more than 5 years. Survival analysis lines were made by Kaplan-Meier method and the difference between groups was tested by the Log-rank test. The expression of Netrin-1 protein was detected by immunohistochemistry staining and its clinical significance was analyzed. Results: Renal clear cell carcinoma: 51 cases in high expression of Netrin-1 and 21 cases in low expression, normal tissues: 12 cases in high expression of Netrin-1 and 60 cases in low expression, the difference between the two groups is significant (χ2=42.921, P2=8.000, χ2=6.203; P2=1.360, P=0.245). Conclusions: Netrin-1 protein plays an important role in the development of RCCC. It might be a new specific tumor marker of RCCC, and might become a new target in treatment of RCCC.